div{
	border:1px solid red;
}

.top{
	background:none repeat scroll 0 0 #1E71B1;
}
		
.logo{
	width:150px;
	height:60px;
	float:left;
}

.top_nav{
	margin:5px 0px 0px 0px;
	height:60px;
}

.top_nav td{
	width:100px;
	font: 12px/1.8 'Microsoft YaHei',Tahoma,Verdana,'Simsun';
	font-weight: bold;
	color: #FFFFFF;
	text-align:center;
}

.left_nav{
	width:150px;
	float:left;
	height:100%;
}

.nav_icon{
	width:32px;
	height:32px;
}

.main_area{
	margin:20px 0px 0px 20px;
	height:600px;
	float:left;
}